X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=tests%2Fpools%2Fselection-strategies%2Fselection-strategies.test.js;h=167736edb9f11c24da068a0b43da56c48db14344;hb=ff128cc9dc9cee365f55b15721d5b90707577a0a;hp=dd5a398fc9a0b101b5a6fe27c3a1c38accaa94b9;hpb=df593701c4bd494b0e99372fdcc3708412799942;p=poolifier.git

diff --git a/tests/pools/selection-strategies/selection-strategies.test.js b/tests/pools/selection-strategies/selection-strategies.test.js
index dd5a398f..167736ed 100644
--- a/tests/pools/selection-strategies/selection-strategies.test.js
+++ b/tests/pools/selection-strategies/selection-strategies.test.js
@@ -209,7 +209,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: maxMultiplier,
           executing: 0,
@@ -218,31 +218,18 @@ describe('Selection strategies test suite', () => {
           failed: 0
         },
         runTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
     }
@@ -270,7 +257,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: maxMultiplier,
           executing: 0,
@@ -279,31 +266,18 @@ describe('Selection strategies test suite', () => {
           failed: 0
         },
         runTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
     }
@@ -476,7 +450,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -485,35 +459,22 @@ describe('Selection strategies test suite', () => {
           failed: 0
         },
         runTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
     }
@@ -536,7 +497,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -545,35 +506,22 @@ describe('Selection strategies test suite', () => {
           failed: 0
         },
         runTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
     }
@@ -675,7 +623,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -685,40 +633,31 @@ describe('Selection strategies test suite', () => {
         },
         runTime: {
           aggregate: expect.any(Number),
-          average: 0,
-          median: 0,
+          maximum: expect.any(Number),
+          minimum: expect.any(Number),
           history: expect.any(CircularArray)
         },
         waitTime: {
           aggregate: expect.any(Number),
-          average: 0,
-          median: 0,
+          maximum: expect.any(Number),
+          minimum: expect.any(Number),
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
-      expect(workerNode.workerUsage.runTime.aggregate).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.waitTime.aggregate).toBeGreaterThanOrEqual(
-        0
-      )
+      expect(workerNode.usage.runTime.aggregate).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.waitTime.aggregate).toBeGreaterThanOrEqual(0)
     }
     // We need to clean up the resources after our test
     await pool.destroy()
@@ -739,7 +678,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -749,40 +688,31 @@ describe('Selection strategies test suite', () => {
         },
         runTime: {
           aggregate: expect.any(Number),
-          average: 0,
-          median: 0,
+          maximum: expect.any(Number),
+          minimum: expect.any(Number),
           history: expect.any(CircularArray)
         },
         waitTime: {
           aggregate: expect.any(Number),
-          average: 0,
-          median: 0,
+          maximum: expect.any(Number),
+          minimum: expect.any(Number),
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
-      expect(workerNode.workerUsage.runTime.aggregate).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.waitTime.aggregate).toBeGreaterThanOrEqual(
-        0
-      )
+      expect(workerNode.usage.runTime.aggregate).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.waitTime.aggregate).toBeGreaterThanOrEqual(0)
     }
     // We need to clean up the resources after our test
     await pool.destroy()
@@ -882,7 +812,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toMatchObject({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -891,39 +821,30 @@ describe('Selection strategies test suite', () => {
           failed: 0
         },
         runTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
-          idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
+          idle: expect.objectContaining({
             history: expect.any(CircularArray)
-          },
-          active: {
-            aggregate: expect.any(Number),
-            average: 0,
-            median: 0,
+          }),
+          active: expect.objectContaining({
             history: expect.any(CircularArray)
-          },
-          utilization: expect.any(Number)
+          })
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
-      expect(workerNode.workerUsage.elu.utilization).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.elu.utilization).toBeLessThanOrEqual(1)
+      if (workerNode.usage.elu.utilization == null) {
+        expect(workerNode.usage.elu.utilization).toBeUndefined()
+      } else {
+        expect(workerNode.usage.elu.utilization).toBeGreaterThanOrEqual(0)
+        expect(workerNode.usage.elu.utilization).toBeLessThanOrEqual(1)
+      }
     }
     // We need to clean up the resources after our test
     await pool.destroy()
@@ -944,7 +865,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toMatchObject({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -953,39 +874,30 @@ describe('Selection strategies test suite', () => {
           failed: 0
         },
         runTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
-          idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
+          idle: expect.objectContaining({
             history: expect.any(CircularArray)
-          },
-          active: {
-            aggregate: expect.any(Number),
-            average: 0,
-            median: 0,
+          }),
+          active: expect.objectContaining({
             history: expect.any(CircularArray)
-          },
-          utilization: expect.any(Number)
+          })
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
-      expect(workerNode.workerUsage.elu.utilization).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.elu.utilization).toBeLessThanOrEqual(1)
+      if (workerNode.usage.elu.utilization == null) {
+        expect(workerNode.usage.elu.utilization).toBeUndefined()
+      } else {
+        expect(workerNode.usage.elu.utilization).toBeGreaterThanOrEqual(0)
+        expect(workerNode.usage.elu.utilization).toBeLessThanOrEqual(1)
+      }
     }
     // We need to clean up the resources after our test
     await pool.destroy()
@@ -1085,7 +997,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toMatchObject({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -1093,42 +1005,41 @@ describe('Selection strategies test suite', () => {
           maxQueued: 0,
           failed: 0
         },
-        runTime: {
-          aggregate: expect.any(Number),
-          average: expect.any(Number),
-          median: 0,
+        runTime: expect.objectContaining({
           history: expect.any(CircularArray)
-        },
+        }),
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
-          idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
+          idle: expect.objectContaining({
             history: expect.any(CircularArray)
-          },
-          active: {
-            aggregate: expect.any(Number),
-            average: expect.any(Number),
-            median: 0,
+          }),
+          active: expect.objectContaining({
             history: expect.any(CircularArray)
-          },
-          utilization: expect.any(Number)
+          })
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
-      expect(workerNode.workerUsage.runTime.aggregate).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.runTime.average).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.elu.utilization).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.elu.utilization).toBeLessThanOrEqual(1)
+      if (workerNode.usage.runTime.aggregate == null) {
+        expect(workerNode.usage.runTime.aggregate).toBeUndefined()
+      } else {
+        expect(workerNode.usage.runTime.aggregate).toBeGreaterThan(0)
+      }
+      if (workerNode.usage.runTime.average == null) {
+        expect(workerNode.usage.runTime.average).toBeUndefined()
+      } else {
+        expect(workerNode.usage.runTime.average).toBeGreaterThan(0)
+      }
+      if (workerNode.usage.elu.utilization == null) {
+        expect(workerNode.usage.elu.utilization).toBeUndefined()
+      } else {
+        expect(workerNode.usage.elu.utilization).toBeGreaterThanOrEqual(0)
+        expect(workerNode.usage.elu.utilization).toBeLessThanOrEqual(1)
+      }
     }
     expect(
       pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
@@ -1154,7 +1065,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toMatchObject({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -1162,42 +1073,41 @@ describe('Selection strategies test suite', () => {
           maxQueued: 0,
           failed: 0
         },
-        runTime: {
-          aggregate: expect.any(Number),
-          average: expect.any(Number),
-          median: 0,
+        runTime: expect.objectContaining({
           history: expect.any(CircularArray)
-        },
+        }),
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
-          idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
+          idle: expect.objectContaining({
             history: expect.any(CircularArray)
-          },
-          active: {
-            aggregate: expect.any(Number),
-            average: expect.any(Number),
-            median: 0,
+          }),
+          active: expect.objectContaining({
             history: expect.any(CircularArray)
-          },
-          utilization: expect.any(Number)
+          })
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
-      expect(workerNode.workerUsage.runTime.aggregate).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.runTime.average).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.elu.utilization).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.elu.utilization).toBeLessThanOrEqual(1)
+      if (workerNode.usage.runTime.aggregate == null) {
+        expect(workerNode.usage.runTime.aggregate).toBeUndefined()
+      } else {
+        expect(workerNode.usage.runTime.aggregate).toBeGreaterThan(0)
+      }
+      if (workerNode.usage.runTime.average == null) {
+        expect(workerNode.usage.runTime.average).toBeUndefined()
+      } else {
+        expect(workerNode.usage.runTime.average).toBeGreaterThan(0)
+      }
+      if (workerNode.usage.elu.utilization == null) {
+        expect(workerNode.usage.elu.utilization).toBeUndefined()
+      } else {
+        expect(workerNode.usage.elu.utilization).toBeGreaterThanOrEqual(0)
+        expect(workerNode.usage.elu.utilization).toBeLessThanOrEqual(1)
+      }
     }
     expect(
       pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
@@ -1228,7 +1138,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toMatchObject({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -1236,42 +1146,41 @@ describe('Selection strategies test suite', () => {
           maxQueued: 0,
           failed: 0
         },
-        runTime: {
-          aggregate: expect.any(Number),
-          average: 0,
-          median: expect.any(Number),
+        runTime: expect.objectContaining({
           history: expect.any(CircularArray)
-        },
+        }),
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
-          idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
+          idle: expect.objectContaining({
             history: expect.any(CircularArray)
-          },
-          active: {
-            aggregate: expect.any(Number),
-            average: expect.any(Number),
-            median: 0,
+          }),
+          active: expect.objectContaining({
             history: expect.any(CircularArray)
-          },
-          utilization: expect.any(Number)
+          })
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
-      expect(workerNode.workerUsage.runTime.aggregate).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.runTime.median).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.elu.utilization).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.elu.utilization).toBeLessThanOrEqual(1)
+      if (workerNode.usage.runTime.aggregate == null) {
+        expect(workerNode.usage.runTime.aggregate).toBeUndefined()
+      } else {
+        expect(workerNode.usage.runTime.aggregate).toBeGreaterThan(0)
+      }
+      if (workerNode.usage.runTime.median == null) {
+        expect(workerNode.usage.runTime.median).toBeUndefined()
+      } else {
+        expect(workerNode.usage.runTime.median).toBeGreaterThan(0)
+      }
+      if (workerNode.usage.elu.utilization == null) {
+        expect(workerNode.usage.elu.utilization).toBeUndefined()
+      } else {
+        expect(workerNode.usage.elu.utilization).toBeGreaterThanOrEqual(0)
+        expect(workerNode.usage.elu.utilization).toBeLessThanOrEqual(1)
+      }
     }
     expect(
       pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
@@ -1450,7 +1359,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -1458,40 +1367,35 @@ describe('Selection strategies test suite', () => {
           maxQueued: 0,
           failed: 0
         },
-        runTime: {
-          aggregate: expect.any(Number),
-          average: expect.any(Number),
-          median: 0,
+        runTime: expect.objectContaining({
           history: expect.any(CircularArray)
-        },
+        }),
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
-      expect(workerNode.workerUsage.runTime.aggregate).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.runTime.average).toBeGreaterThanOrEqual(0)
+      if (workerNode.usage.runTime.aggregate == null) {
+        expect(workerNode.usage.runTime.aggregate).toBeUndefined()
+      } else {
+        expect(workerNode.usage.runTime.aggregate).toBeGreaterThan(0)
+      }
+      if (workerNode.usage.runTime.average == null) {
+        expect(workerNode.usage.runTime.average).toBeUndefined()
+      } else {
+        expect(workerNode.usage.runTime.average).toBeGreaterThan(0)
+      }
     }
     expect(
       pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
@@ -1522,7 +1426,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -1532,38 +1436,29 @@ describe('Selection strategies test suite', () => {
         },
         runTime: {
           aggregate: expect.any(Number),
+          maximum: expect.any(Number),
+          minimum: expect.any(Number),
           average: expect.any(Number),
-          median: 0,
           history: expect.any(CircularArray)
         },
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
-      expect(workerNode.workerUsage.runTime.aggregate).toBeGreaterThan(0)
-      expect(workerNode.workerUsage.runTime.average).toBeGreaterThan(0)
+      expect(workerNode.usage.runTime.aggregate).toBeGreaterThan(0)
+      expect(workerNode.usage.runTime.average).toBeGreaterThan(0)
     }
     expect(
       pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
@@ -1599,7 +1494,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: expect.any(Number),
           executing: 0,
@@ -1609,38 +1504,29 @@ describe('Selection strategies test suite', () => {
         },
         runTime: {
           aggregate: expect.any(Number),
-          average: 0,
+          maximum: expect.any(Number),
+          minimum: expect.any(Number),
           median: expect.any(Number),
           history: expect.any(CircularArray)
         },
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
-      expect(workerNode.workerUsage.tasks.executed).toBeGreaterThanOrEqual(0)
-      expect(workerNode.workerUsage.tasks.executed).toBeLessThanOrEqual(
+      expect(workerNode.usage.tasks.executed).toBeGreaterThanOrEqual(0)
+      expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
         max * maxMultiplier
       )
-      expect(workerNode.workerUsage.runTime.aggregate).toBeGreaterThan(0)
-      expect(workerNode.workerUsage.runTime.median).toBeGreaterThan(0)
+      expect(workerNode.usage.runTime.aggregate).toBeGreaterThan(0)
+      expect(workerNode.usage.runTime.median).toBeGreaterThan(0)
     }
     expect(
       pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
@@ -1833,7 +1719,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: maxMultiplier,
           executing: 0,
@@ -1842,31 +1728,18 @@ describe('Selection strategies test suite', () => {
           failed: 0
         },
         runTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
     }
@@ -1916,7 +1789,7 @@ describe('Selection strategies test suite', () => {
     }
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
-      expect(workerNode.workerUsage).toStrictEqual({
+      expect(workerNode.usage).toStrictEqual({
         tasks: {
           executed: maxMultiplier,
           executing: 0,
@@ -1925,31 +1798,18 @@ describe('Selection strategies test suite', () => {
           failed: 0
         },
         runTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         waitTime: {
-          aggregate: 0,
-          average: 0,
-          median: 0,
           history: expect.any(CircularArray)
         },
         elu: {
           idle: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
           },
           active: {
-            aggregate: 0,
-            average: 0,
-            median: 0,
             history: expect.any(CircularArray)
-          },
-          utilization: 0
+          }
         }
       })
     }